diff --git a/tests/libluna/TestFormat.cpp b/tests/libluna/TestFormat.cpp
index 955d342c..587c87f3 100644
--- a/tests/libluna/TestFormat.cpp
+++ b/tests/libluna/TestFormat.cpp
@@ -280,6 +280,15 @@ TestResult test_verbatim_percent_format()
     test_success;
 }
 
+TestResult test_format_character()
+{
+    auto fmt = TRY(String::format("exampl%c"_sv, 'e'));
+
+    validate(fmt.view() == "example");
+
+    test_success;
+}
+
 Result<void> test_main()
 {
     test_prelude;
@@ -315,6 +324,7 @@ Result<void> test_main()
     run_test(test_negative_va_width);
     run_test(test_negative_va_precision);
     run_test(test_verbatim_percent_format);
+    run_test(test_format_character);
 
     return {};
 }